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Effect of orally administered B. subtilis-cNK-2 on growth performance, immunity, gut health, and gut microbiome in chickens infected with Eimeria acervulina and its potential as an alternative to antibiotics.
Poult Sci
November 2024
Animal Bioscience and Biotechnology Laboratory, United States Department of Agriculture, Agricultural Research Service, Beltsville, MD 20705, USA. Electronic address:
This study investigated the best oral delivery strategy (gavage or feed) for the B. subtilis expressing the chicken anti-microbial peptide cNK-2 (B. subtilis-cNK-2) in comparison to monensin, in chickens challenged with Eimeria acervulina (E.
View Article and Find Full Text PDFDrug resistance and genetic characteristics of one Eimeria tenella isolate from Xiantao, Hubei Province, China.
Parasitol Res
August 2024
Key Laboratory Preventive Veterinary of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, PR China.
Chicken coccidiosis causes retarded growth and low production performance in poultry, resulting in huge economic losses to the poultry industry. In order to prevent and control chicken coccidiosis, great efforts have been made to develop new drugs and vaccines, which require pure isolates of Eimeria spp. In this study, we obtained the Eimeira tenella Xiantao isolate by single oocyst isolation technology and compared its genome with the reference genome GCF_000499545.
View Article and Find Full Text PDFComparing the effect of phytobiotic, coccidiostat, toltrazuril, and vaccine on the prevention and treatment of coccidiosis in broilers.
Poult Sci
May 2024
Prestage Department of Poultry Science, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC 27695-7608 USA. Electronic address:
This study compared 2 herbal anticoccidiosis drugs (water-soluble and feed-additive drugs) with monensin coccidiostat, toltrazuril (TTZ, anticoccidiosis drug), and Livacox Q (anticoccidiosis vaccine) in terms of their effects on the prevention and treatment of coccidiosis in broilers. In this study, 280 Ross 308 broiler chickens (a mix of both genders) were used in a completely randomized design with 7 treatments and 5 replications each including 8 chickens per replicate. On d 21 of rearing, all experimental groups, except for the negative control group (NC), were challenged with a mixed suspension of common strains of Eimeria, and the intended indices were assessed, including performance indices, number of oocysts per gram (OPG) of feces, intestinal injuries, and the total number of intestinal bacteria.
View Article and Find Full Text PDFEffects of monensin sodium and live attenuated oocyst vaccine as coccidiosis management programs on productive performance, bone quality and mineral utilisation in broiler chickens.
Br Poult Sci
February 2024
Faculty of Agriculture, Department of Animal Science, Aydın Adnan Menderes University, Aydın, Turkey.
1. The following study was conducted to evaluate the influence of coccidiosis vaccine-induced metabolic stress on the utilisation of minerals in broilers. The starter, grower and finisher phase diets, including macro- and micro minerals at the recommended levels for the breed standards, were fed to chickens between 1 and 39 d of age.
View Article and Find Full Text PDFEstimates of on-farm antimicrobial usage in egg production in the United States, 2016-2021.
Front Vet Sci
March 2023
Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN, United States.
Very few data exist globally regarding the use of antimicrobials in the table egg industry. Antimicrobial use data from broiler chickens and turkeys cannot be used as a surrogate of layer chickens because of the fact that table eggs for human consumption are produced daily by laying hens. To avoid the possibility of antimicrobial residues in the eggs, there are very few antimicrobials approved for use in layers in the U.
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